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Available in 11 languages" > <label id="p-lang-btn-label" for="p-lang-btn-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--action-progressive mw-portlet-lang-heading-11" aria-hidden="true" ><span class="vector-icon mw-ui-icon-language-progressive mw-ui-icon-wikimedia-language-progressive"></span> <span class="vector-dropdown-label-text">11 languages</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-cs mw-list-item"><a href="https://cs.wikipedia.org/wiki/Intermedi%C3%A1ln%C3%AD_hornina" title="Intermediální hornina – Czech" lang="cs" hreflang="cs" data-title="Intermediální hornina" data-language-autonym="Čeština" data-language-local-name="Czech" class="interlanguage-link-target"><span>Čeština</span></a></li><li class="interlanguage-link interwiki-de mw-list-item"><a href="https://de.wikipedia.org/wiki/Intermedi%C3%A4res_Gestein" title="Intermediäres Gestein – German" lang="de" hreflang="de" data-title="Intermediäres Gestein" data-language-autonym="Deutsch" data-language-local-name="German" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-et mw-list-item"><a href="https://et.wikipedia.org/wiki/Keskmine_kivim" title="Keskmine kivim – Estonian" lang="et" hreflang="et" data-title="Keskmine kivim" data-language-autonym="Eesti" data-language-local-name="Estonian" class="interlanguage-link-target"><span>Eesti</span></a></li><li class="interlanguage-link interwiki-fa mw-list-item"><a href="https://fa.wikipedia.org/wiki/%D8%AA%D8%B1%DA%A9%DB%8C%D8%A8_%D8%AD%D8%AF_%D9%88%D8%A7%D8%B3%D8%B7" title="ترکیب حد واسط – Persian" lang="fa" hreflang="fa" data-title="ترکیب حد واسط" data-language-autonym="فارسی" data-language-local-name="Persian" class="interlanguage-link-target"><span>فارسی</span></a></li><li class="interlanguage-link interwiki-nl mw-list-item"><a href="https://nl.wikipedia.org/wiki/Intermediair_(gesteente)" title="Intermediair (gesteente) – Dutch" lang="nl" hreflang="nl" data-title="Intermediair (gesteente)" data-language-autonym="Nederlands" data-language-local-name="Dutch" class="interlanguage-link-target"><span>Nederlands</span></a></li><li class="interlanguage-link interwiki-ja mw-list-item"><a href="https://ja.wikipedia.org/wiki/%E4%B8%AD%E6%80%A7%E5%B2%A9" title="中性岩 – Japanese" lang="ja" hreflang="ja" data-title="中性岩" data-language-autonym="日本語" data-language-local-name="Japanese" class="interlanguage-link-target"><span>日本語</span></a></li><li class="interlanguage-link interwiki-uz mw-list-item"><a href="https://uz.wikipedia.org/wiki/O%CA%BBrta_tog%CA%BB_jinslari" title="Oʻrta togʻ jinslari – Uzbek" lang="uz" hreflang="uz" data-title="Oʻrta togʻ jinslari" data-language-autonym="Oʻzbekcha / ўзбекча" data-language-local-name="Uzbek" 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data-file-height="399" /></a></span></div></td><td class="mbox-text"><div class="mbox-text-span">This article <b>does not <a href="/wiki/Wikipedia:Citing_sources" title="Wikipedia:Citing sources">cite</a> any <a href="/wiki/Wikipedia:Verifiability" title="Wikipedia:Verifiability">sources</a></b>.<span class="hide-when-compact"> Please help <a href="/wiki/Special:EditPage/Intermediate_composition" title="Special:EditPage/Intermediate composition">improve this article</a> by <a href="/wiki/Help:Referencing_for_beginners" title="Help:Referencing for beginners">adding citations to reliable sources</a>. Unsourced material may be challenged and <a href="/wiki/Wikipedia:Verifiability#Burden_of_evidence" title="Wikipedia:Verifiability">removed</a>.<br /><small><span class="plainlinks"><i>Find sources:</i> <a rel="nofollow" class="external text" href="https://www.google.com/search?as_eq=wikipedia&q=%22Intermediate+composition%22">"Intermediate composition"</a> – <a rel="nofollow" class="external text" href="https://www.google.com/search?tbm=nws&q=%22Intermediate+composition%22+-wikipedia&tbs=ar:1">news</a> <b>·</b> <a rel="nofollow" class="external text" href="https://www.google.com/search?&q=%22Intermediate+composition%22&tbs=bkt:s&tbm=bks">newspapers</a> <b>·</b> <a rel="nofollow" class="external text" href="https://www.google.com/search?tbs=bks:1&q=%22Intermediate+composition%22+-wikipedia">books</a> <b>·</b> <a rel="nofollow" class="external text" href="https://scholar.google.com/scholar?q=%22Intermediate+composition%22">scholar</a> <b>·</b> <a rel="nofollow" class="external text" href="https://www.jstor.org/action/doBasicSearch?Query=%22Intermediate+composition%22&acc=on&wc=on">JSTOR</a></span></small></span> <span class="date-container"><i>(<span class="date">October 2023</span>)</i></span><span class="hide-when-compact"><i> (<small><a href="/wiki/Help:Maintenance_template_removal" title="Help:Maintenance template removal">Learn how and when to remove this message</a></small>)</i></span></div></td></tr></tbody></table> <p>In <a href="/wiki/Igneous_petrology" title="Igneous petrology">igneous petrology</a>, an <b>intermediate composition</b> refers to the <a href="/wiki/Chemical_composition" title="Chemical composition">chemical composition</a> of a rock that has 51.5–63 <a href="/wiki/Mass_fraction_(chemistry)" title="Mass fraction (chemistry)">wt%</a> <a href="/wiki/Silicon_dioxide" title="Silicon dioxide">SiO<sub>2</sub></a> being an intermediate between <a href="/wiki/Felsic" title="Felsic">felsic</a> and <a href="/wiki/Mafic" title="Mafic">mafic</a> compositions. Typical intermediate rocks include <a href="/wiki/Andesite" title="Andesite">andesite</a> and <a href="/wiki/Trachyandesite" title="Trachyandesite">trachyandesite</a> among <a href="/wiki/Volcanic_rock" title="Volcanic rock">volcanic rocks</a> and <a href="/wiki/Diorite" title="Diorite">diorite</a> and <a href="/wiki/Granodiorite" title="Granodiorite">granodiorite</a> among <a href="/wiki/Intrusive_rock" title="Intrusive rock">plutonic rocks</a>. </p><p><br /> </p> <div class="navbox-styles"><style data-mw-deduplicate="TemplateStyles:r1129693374">.mw-parser-output .hlist dl,.mw-parser-output .hlist ol,.mw-parser-output .hlist ul{margin:0;padding:0}.mw-parser-output .hlist dd,.mw-parser-output .hlist dt,.mw-parser-output .hlist li{margin:0;display:inline}.mw-parser-output .hlist.inline,.mw-parser-output .hlist.inline dl,.mw-parser-output .hlist.inline ol,.mw-parser-output .hlist.inline ul,.mw-parser-output .hlist dl dl,.mw-parser-output .hlist dl ol,.mw-parser-output .hlist dl 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template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:Igneous_rocks" title="Special:EditPage/Template:Igneous rocks"><abbr title="Edit this template">e</abbr></a></li></ul></div><div id="Common_igneous_rocks_classified_by_silicon_dioxide_content" style="font-size:114%;margin:0 4em">Common <a href="/wiki/Igneous_rock" title="Igneous rock">igneous rocks</a> classified by <a href="/wiki/Silicon_dioxide" title="Silicon dioxide">silicon dioxide</a> content</div></th></tr><tr><td colspan="2" class="navbox-list navbox-odd" style="width:100%;padding:0;background:transparent;color:inherit;"><div style="padding:0px"><table class="navbox-columns-table" style="border-spacing: 0px; text-align:left;width:100%;"><tbody><tr><td class="navbox-abovebelow" style="font-weight:bold;">Type</td><td class="navbox-abovebelow" style="border-left:2px solid #fdfdfd;font-weight:bold;"><a href="/wiki/Ultramafic_rock" title="Ultramafic rock">Ultramafic</a><br /><45% <a href="/wiki/Silicon_dioxide" title="Silicon dioxide">SiO<sub>2</sub></a></td><td class="navbox-abovebelow" style="border-left:2px solid #fdfdfd;font-weight:bold;"><a href="/wiki/Mafic" title="Mafic">Mafic</a><br />45–52% <a href="/wiki/Silicon_dioxide" title="Silicon dioxide">SiO<sub>2</sub></a></td><td class="navbox-abovebelow" style="border-left:2px solid #fdfdfd;font-weight:bold;"><a class="mw-selflink selflink">Intermediate</a><br />52–63% <a href="/wiki/Silicon_dioxide" title="Silicon dioxide">SiO<sub>2</sub></a></td><td class="navbox-abovebelow" style="border-left:2px solid #fdfdfd;font-weight:bold;"><a class="mw-selflink selflink">Intermediate</a>–<a href="/wiki/Felsic" title="Felsic">felsic</a><br />63–69% <a href="/wiki/Silicon_dioxide" title="Silicon dioxide">SiO<sub>2</sub></a></td><td class="navbox-abovebelow" style="border-left:2px solid #fdfdfd;font-weight:bold;"><a href="/wiki/Felsic" title="Felsic">Felsic</a><br />>69% <a href="/wiki/Silicon_dioxide" title="Silicon dioxide">SiO<sub>2</sub></a></td></tr><tr style="vertical-align:top"><td class="navbox-list" style="padding:0px;text-align: center;width:12%;"><div> <p><b><a href="/wiki/Volcanic_rock" title="Volcanic rock">Volcanic rocks</a>:</b><br /><b><a href="/wiki/Subvolcanic_rock" title="Subvolcanic rock">Subvolcanic rocks</a>:</b><br /><b><a href="/wiki/Pluton" class="mw-redirect" title="Pluton">Plutonic rocks</a>:</b> </p> </div></td><td class="navbox-list" style="border-left:2px solid #fdfdfd;padding:0px;text-align: center;width:12%;"><div> <p><a href="/wiki/Picrite_basalt" title="Picrite basalt">Picrite basalt</a><br /><br /><a href="/wiki/Peridotite" title="Peridotite">Peridotite</a> </p> </div></td><td class="navbox-list" style="border-left:2px solid #fdfdfd;padding:0px;text-align: center;width:12%;"><div> <p><a href="/wiki/Basalt" title="Basalt">Basalt</a><br /><a href="/wiki/Diabase" title="Diabase">Diabase (Dolerite)</a><br /><a href="/wiki/Gabbro" title="Gabbro">Gabbro</a> </p> </div></td><td class="navbox-list" style="border-left:2px solid #fdfdfd;padding:0px;text-align: center;width:12%;"><div> <p><a href="/wiki/Andesite" title="Andesite">Andesite</a><br /><a href="/wiki/Diorite" title="Diorite">Microdiorite</a><br /><a href="/wiki/Diorite" title="Diorite">Diorite</a> </p> </div></td><td class="navbox-list" style="border-left:2px solid #fdfdfd;padding:0px;text-align: center;width:12%;"><div> <p><a href="/wiki/Dacite" title="Dacite">Dacite</a><br /><a href="/wiki/Granodiorite" title="Granodiorite">Microgranodiorite</a><br /><a href="/wiki/Granodiorite" title="Granodiorite">Granodiorite</a> </p> </div></td><td class="navbox-list" style="border-left:2px solid #fdfdfd;padding:0px;text-align: center;width:12%;"><div> <p><a href="/wiki/Rhyolite" title="Rhyolite">Rhyolite</a><br /><a href="/wiki/Granite" title="Granite">Microgranite</a><br /><a href="/wiki/Granite" title="Granite">Granite</a> </p> 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